Formation of imines of phenylacetaldehyde with NMR characterization

with t-butylamine

Verhe, R. et al Tetrahedron Volume 36, Issue 1, 1980, Pages 131-142. Only the abstract is available online. Supposedly, they make the imine in 10 mins in CCl4, which is interesting because we failed in CDCl3. (Private Access)
Miguel A. Esteruelas et al. Organometallics; 2005; 24(21) pp 5084 - 5094; Experimental includes the NMRs of certain imines.

with valine

with isopropylamine